My boyfriend seems to be burned out from his job... How can I make him feel better?

Anonymous
When I 1st knew my boyfriend, he used to text me and we had great times, laughing at each other jokes and you can see the enthusiasm from the text. Now we had become a couple for a week, and recently he's been working for one week straight, 24-30 hours per session, non-stop, has probably only 3-5 hours sleep per day or even once every 2 days! FYI he's working as a riot police and there are current ongoing protest in the part of the city we currently live in. He still texted me everyday, but he seems like he's not into it, or he's not in the mood... I know he's burned out from his job, I tried not to be upset, today I asked him if something is wrong, he said no, he said it's just from work, and he tried to talk to me, but I can't see he's really not into it... What can I do to make him feel better? I sent him a text saying that I understood that he's burnt out from his job lately, and that effect his behavior, but I want him to know that he's at his best when he smile, and I love his smile. No matter what happen, I'm always at his side, and all I asked him at least not to forget me, don't worry about me, I can take care well on myself, just text me when he feels much better. *big hugs*... So I'm not gonna text him anymore do you think my text will cheer him up? But even if he text me what shall I do? It hurts me when he talks as if he's not into it, but I don't want him to think that I'm not supportive. What do you think?
Updates
+1 y
He texted me good morning my darling next morning and nothing more after that. The day after that (which was yesterday) I finally managed to chat to him and he seems so sad... He told me that they told him (and few more others) to go to different city (and they only gave him notice like few hours before and told him to fly that night + didn't even gave details like until when they will be there) because the protest in the other place worsen.
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+1 y
I told him not to worry as I will be waiting for him here and he told me he misses me a lot... I guess he's really burned out from his job but I'm happy enough to know he's still showing the same affection towards me :) thanks for all your answers, I really appreciate it guys :)
My boyfriend seems to be burned out from his job... How can I make him feel better?
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